megan mcgrath, news4. >>> and our own doug kammerer will be on hand for tonight's lighting. you can watch his live reports later in this newscast. coming up on news4 at 5:00. >>> heads-up if you have to drive downtown tonight. two major roads are closed for the ceremony. 15th street, and 17th street between constitution and new york avenues. both those roadways will reopen tonight around 7 crock. >>> and here's a live look now outside. showers are on the way. but will they interfere with the tree lighting? >> let's head to storm team 4 meteorologist veronica johnson. >> hey there, barbara and pat. timing is everything, right? we just don't want any rain. not for the national christmas tree lighting, of course. it was a gorgeous day today. we had sunshine, and it was a little cool and crisp, but every bit like december which it's supposed to be. here's the forecast for the national christmas tree lighting down at the ellipse. 4:46 your sunset today. we're going to go ahead and zoom on in, right there to that tree, and watch the ornament come out, because there's your forecast